Scientists have long suspected that Enceladus, one of Saturn’s tiny moons, might be harboring a subsurface ocean. But new data from NASA’s Cassini spacecraft paints a more interesting picture: an ocean is covering the entire thing. ...

Data from NASA's Cassini spacecraft have revealed Saturn's moon Titan likely harbors a layer of liquid water under its ice shell. Researchers saw a large amount of squeezing and stretching as the moon orbited Saturn. They deduced th...

Saturn’s moon Dione may possess a subsurface ocean, one which may have at one time been geologically active, new images obtained by NASA’s Cassini spacecraft suggest. The new images are of Dione’s rather strange 500-mile-long mounta...

A subsurface ocean lies deep within Saturn's moon Dione, according to new data from the Cassini mission to Saturn. Two other moons of Saturn, Titan and Enceladus, are already known to hide global oceans beneath their icy crusts, but...